/*
 * Created on 08-Jun-2004
 * Created by Paul Gardner
 * Copyright (C) Azureus Software, Inc, All Rights Reserved.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 *
 */

package org.gudy.azureus2.core3.util;

import java.security.MessageDigest;

import org.bouncycastle.jce.provider.BouncyCastleProvider;

public class MD4Hasher {
    protected MessageDigest md4;

    /**
     * Uses bouncy castle provider
     * 
     */

    public MD4Hasher() {
        try {
            md4 = MessageDigest.getInstance("MD4", BouncyCastleProvider.PROVIDER_NAME);

        } catch (Throwable e) {

            // should never get here

            Debug.printStackTrace(e);
        }
    }

    public void reset() {
        md4.reset();
    }

    public void update(byte[] data, int pos, int len) {
        md4.update(data, pos, len);
    }

    public void update(byte[] data) {
        update(data, 0, data.length);
    }

    public byte[] getDigest() {
        return (md4.digest());
    }
}
